Réponses

2013-11-02T20:27:06+01:00
3x5+7x8-(-9+3)x11 
=15+56-(-6)x11
=15+56+6x11
=15+56+66
=137
3x5+7x8-(-9+3)x11
=15+56-(-6)x11
=15+56+6x11
=15+56+66
=137
2013-11-02T20:28:45+01:00
= 3 x 5 + 7 x 8 - ( -9 + 3 ) x 11 
= 15 + 56 + 6 x 11
= 71 + 66
= 137